Improvement in subsoil-plows



T. EQC. BRINLY Improvement in Subsoil-Plows.

No. 131,391. Patented Sep.17, 1372.

. 4 Z I ifizflwmlz 2 2. a M W ham/0i."

W N b! 64;

UNITED STATES PATENT OFFICE.

THOMAS E. 0.1BRINLY, OF LOUISVILLE, KENTUCKY.

IMPROVEMENT IN .SUBSOlL-PLOWS.

Specification forming part of Letters Patent No. 131,391, datedSeptember 17, 1872.

To all whom it may concern:

- Be it known that I, THOMAS E. O. BRINLY, of Louisville, in the countyof Jefferson and State of Kentucky, have invented a certain Improvementin Subsoil-Plows, of which the following is a specification:

This invention relates to the construction of the share and standard ofa subsoil-plow, and to the manner of connecting the two together; all ofwhich is so' fully explained in the ensuing description and preciselypointed out in the claim as not to need a preliminary statement morespecific than given.

Figure 1 is a perspective view representing my improved subsoil-plow.Fig. 2 is a bottomv view of the same, showing a portion of the point ofthe share in section to bring to view the socket therein. Fig. 3 is asectional plan View, showing a different form of a share. Fig. 4 is alongitudinal section of the share shown in Fig. 3.

The same letters of reference are employed in all the figures in thedesignation of identical parts.

The top of the standard A terminates in a bar, A which is fitted to thelower side of a plow-beam, and firmly secured thereto by bolts passingthrough the holes a a in the ends of the bar, as shown in Fig. 1. Thestandard is made wedge-shaped intransversesection, so that it mayreadily pass through the ground, and allow the trench made in the earthby its passage to close again in rear of it. The pointed front edge ofthe standard has a uniform forward declination to a point, a, where itis turned abruptly downward, forming a nearlyvertical shoulder, withwhich it enters a slot,

11, formed in the rear edge of the share B. The latter rests upon thetop edge of the standard from this shoulder forward to its point, andupon lateral flanges A A upon either side thereof, to which it isbolted. The terminal end of the standard projects into a socket, b,formed underneath the upper surface of the share in the rear end of itspoint B, as clearly illustrated in Figs. 2 and 4. The sole A of thestandard will be flush with the under side ofthe point of the share whenthe two are united, and the share will hzwe a slight inclination fromthe point to its rear edge. The share, to properly crumble the earth,should be made with a convexity upon its upper side, either in the formshown in Fig. 1, or that indicated in Fig. 3.

What I claim as my invention, and desire to secure by Letters Patent,is-

The combination of the wedge-shaped standard A A having a forwarddeclination, shoulder at a, flanges A and sole A and the share B, havinga slot, b, in its rear edge, and a socket, b, in its point B, allsubstantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

T. E. C. BRINLY.

Witnesses:

J OHN WOLPERT, JAMES M. WELLS.

